Home / 758,650.57-1,138,145.33-285,340.03

Finding the Fourth Proportional to 758,650.57, 1,138,145.33 and 285,340.03

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Solution

The fourth proportional to 758,650.57, 1,138,145.33 and 285,340.03 is: 428,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,650.57 : 1,138,145.33 = 285,340.03 : x
  2. Step 2: Convert to fraction form
    758,650.57/1,138,145.33 = 285,340.03/x
  3. Step 3: Cross multiply
    758,650.57x = 1,138,145.33 × 285,340.03
  4. Step 4: Simplify right side
    758,650.57x = 324,758,421,179.86
  5. Step 5: Solve for x
    x = 324,758,421,179.86/758,650.57
  6. Step 6: Final answer
    x = 428,073.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.